Classic tool
Cabinet Door Divider Calculator
Calculate the width of each cabinet door from the internal opening, gaps and hinge type.
The Cabinet Door Divider Calculator helps carpenters and cabinet makers set the width of each door of a cabinet, taking the internal opening, side and middle gaps, hinge type and side overlay into account.
To use it, enter the internal opening width, the door height, the number of doors, the hinge type, the side gap, the gap between adjacent doors and the side overlay. The tool shows the final width of each door, the total opening, the side overlay, a practical tip for the chosen hinge type and an SVG preview of the division.
Use the result to confirm sheet dimensions before cutting. Combining this reading with a physical dry-run avoids the most common woodworking rework: doors rubbing against the side or only opening one way.
Use clear inputs to get a more useful result.